/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7390193 [2022-04-05 04:34:02,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 04:34:02,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 04:34:02,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 04:34:02,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 04:34:02,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 04:34:02,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 04:34:02,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 04:34:02,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 04:34:02,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 04:34:02,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 04:34:02,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 04:34:02,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 04:34:02,625 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 04:34:02,626 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 04:34:02,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 04:34:02,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 04:34:02,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 04:34:02,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 04:34:02,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 04:34:02,632 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 04:34:02,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 04:34:02,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 04:34:02,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 04:34:02,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 04:34:02,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-05 04:34:02,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 04:34:02,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 04:34:02,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 04:34:02,675 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-05 04:34:02,688 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 04:34:02,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 04:34:02,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 04:34:02,690 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-05 04:34:02,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 04:34:02,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-05 04:34:02,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 04:34:02,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 04:34:02,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 04:34:02,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 04:34:02,691 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-05 04:34:02,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 04:34:02,691 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 04:34:02,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 04:34:02,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 04:34:02,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 04:34:02,692 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-05 04:34:02,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 04:34:02,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:34:02,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 04:34:02,692 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 04:34:02,693 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 04:34:02,693 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 04:34:02,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 04:34:02,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 04:34:02,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 04:34:02,979 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 04:34:02,981 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 04:34:02,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c [2022-04-05 04:34:03,042 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b1643509/775facc780cd4e1e9a31efc58bbc3b3f/FLAG8676b28e8 [2022-04-05 04:34:03,567 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 04:34:03,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c [2022-04-05 04:34:03,606 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b1643509/775facc780cd4e1e9a31efc58bbc3b3f/FLAG8676b28e8 [2022-04-05 04:34:03,841 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b1643509/775facc780cd4e1e9a31efc58bbc3b3f [2022-04-05 04:34:03,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 04:34:03,845 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 04:34:03,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 04:34:03,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 04:34:03,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 04:34:03,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:34:03" (1/1) ... [2022-04-05 04:34:03,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c840d1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:34:03, skipping insertion in model container [2022-04-05 04:34:03,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:34:03" (1/1) ... [2022-04-05 04:34:03,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 04:34:03,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 04:34:04,360 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c[75550,75563] [2022-04-05 04:34:04,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:34:04,387 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 04:34:04,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c[75550,75563] [2022-04-05 04:34:04,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:34:04,533 INFO L208 MainTranslator]: Completed translation [2022-04-05 04:34:04,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:34:04 WrapperNode [2022-04-05 04:34:04,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 04:34:04,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 04:34:04,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 04:34:04,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 04:34:04,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:34:04" (1/1) ... [2022-04-05 04:34:04,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:34:04" (1/1) ... [2022-04-05 04:34:04,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:34:04" (1/1) ... [2022-04-05 04:34:04,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:34:04" (1/1) ... [2022-04-05 04:34:04,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:34:04" (1/1) ... [2022-04-05 04:34:04,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:34:04" (1/1) ... [2022-04-05 04:34:04,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:34:04" (1/1) ... [2022-04-05 04:34:04,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 04:34:04,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 04:34:04,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 04:34:04,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 04:34:04,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:34:04" (1/1) ... [2022-04-05 04:34:04,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:34:04,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:34:04,777 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-05 04:34:04,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-05 04:34:04,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 04:34:04,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 04:34:04,879 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 04:34:04,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-05 04:34:04,879 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-05 04:34:04,880 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 04:34:04,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-05 04:34:04,880 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-05 04:34:04,880 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-05 04:34:04,880 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-05 04:34:04,880 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 04:34:04,881 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 04:34:04,881 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 04:34:04,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 04:34:04,882 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-05 04:34:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-05 04:34:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 04:34:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-05 04:34:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-05 04:34:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-05 04:34:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-05 04:34:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-05 04:34:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-05 04:34:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-05 04:34:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-05 04:34:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-05 04:34:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 04:34:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-05 04:34:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 04:34:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-05 04:34:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 04:34:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-05 04:34:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-05 04:34:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 04:34:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 04:34:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 04:34:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-05 04:34:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-05 04:34:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-05 04:34:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-05 04:34:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 04:34:05,142 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 04:34:05,144 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 04:34:05,941 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:34:06,329 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-05 04:34:06,330 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-05 04:34:06,341 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 04:34:06,348 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 04:34:06,348 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-05 04:34:06,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:34:06 BoogieIcfgContainer [2022-04-05 04:34:06,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 04:34:06,351 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 04:34:06,352 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 04:34:06,353 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 04:34:06,355 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:34:06" (1/1) ... [2022-04-05 04:34:06,357 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-05 04:34:06,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:34:06 BasicIcfg [2022-04-05 04:34:06,431 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 04:34:06,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 04:34:06,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 04:34:06,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 04:34:06,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 04:34:03" (1/4) ... [2022-04-05 04:34:06,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20dcd092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:34:06, skipping insertion in model container [2022-04-05 04:34:06,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:34:04" (2/4) ... [2022-04-05 04:34:06,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20dcd092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:34:06, skipping insertion in model container [2022-04-05 04:34:06,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:34:06" (3/4) ... [2022-04-05 04:34:06,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20dcd092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 04:34:06, skipping insertion in model container [2022-04-05 04:34:06,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:34:06" (4/4) ... [2022-04-05 04:34:06,443 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.15.i.cil-1.cJordan [2022-04-05 04:34:06,448 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-05 04:34:06,448 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 04:34:06,495 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 04:34:06,503 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-05 04:34:06,504 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 04:34:06,526 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-05 04:34:06,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-05 04:34:06,540 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:06,540 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:06,541 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:06,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:06,546 INFO L85 PathProgramCache]: Analyzing trace with hash 588345913, now seen corresponding path program 1 times [2022-04-05 04:34:06,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:06,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654012892] [2022-04-05 04:34:06,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:06,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:07,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:07,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:34:07,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:07,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654012892] [2022-04-05 04:34:07,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654012892] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:07,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:07,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:07,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477863873] [2022-04-05 04:34:07,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:07,193 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:07,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:07,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:07,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:07,229 INFO L87 Difference]: Start difference. First operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:10,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:10,356 INFO L93 Difference]: Finished difference Result 291 states and 485 transitions. [2022-04-05 04:34:10,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:10,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-04-05 04:34:10,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:10,368 INFO L225 Difference]: With dead ends: 291 [2022-04-05 04:34:10,369 INFO L226 Difference]: Without dead ends: 265 [2022-04-05 04:34:10,370 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:10,380 INFO L913 BasicCegarLoop]: 164 mSDtfsCounter, 156 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:10,384 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 481 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-04-05 04:34:10,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-04-05 04:34:10,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 185. [2022-04-05 04:34:10,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.6111111111111112) internal successors, (290), 180 states have internal predecessors, (290), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:10,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 294 transitions. [2022-04-05 04:34:10,454 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 294 transitions. Word has length 50 [2022-04-05 04:34:10,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:10,454 INFO L478 AbstractCegarLoop]: Abstraction has 185 states and 294 transitions. [2022-04-05 04:34:10,455 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:10,455 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 294 transitions. [2022-04-05 04:34:10,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-04-05 04:34:10,457 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:10,457 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:10,457 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 04:34:10,458 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:10,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:10,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1971108142, now seen corresponding path program 1 times [2022-04-05 04:34:10,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:10,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427976360] [2022-04-05 04:34:10,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:10,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:10,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:10,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:34:10,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:10,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427976360] [2022-04-05 04:34:10,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427976360] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:10,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:10,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:10,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156866256] [2022-04-05 04:34:10,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:10,618 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:10,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:10,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:10,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:10,619 INFO L87 Difference]: Start difference. First operand 185 states and 294 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:11,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:14,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:14,609 INFO L93 Difference]: Finished difference Result 213 states and 334 transitions. [2022-04-05 04:34:14,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:14,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-04-05 04:34:14,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:14,611 INFO L225 Difference]: With dead ends: 213 [2022-04-05 04:34:14,611 INFO L226 Difference]: Without dead ends: 213 [2022-04-05 04:34:14,612 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:14,612 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 22 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:14,613 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 499 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-04-05 04:34:14,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-04-05 04:34:14,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 196. [2022-04-05 04:34:14,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.617801047120419) internal successors, (309), 191 states have internal predecessors, (309), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:14,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 313 transitions. [2022-04-05 04:34:14,624 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 313 transitions. Word has length 51 [2022-04-05 04:34:14,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:14,624 INFO L478 AbstractCegarLoop]: Abstraction has 196 states and 313 transitions. [2022-04-05 04:34:14,624 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:14,624 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 313 transitions. [2022-04-05 04:34:14,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-05 04:34:14,626 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:14,626 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:14,627 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-05 04:34:14,627 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:14,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:14,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1308484506, now seen corresponding path program 1 times [2022-04-05 04:34:14,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:14,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786097950] [2022-04-05 04:34:14,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:14,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:14,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:14,838 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:34:14,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:14,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786097950] [2022-04-05 04:34:14,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786097950] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:14,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:14,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:14,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395222] [2022-04-05 04:34:14,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:14,839 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:14,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:14,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:14,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:14,840 INFO L87 Difference]: Start difference. First operand 196 states and 313 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:17,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:17,437 INFO L93 Difference]: Finished difference Result 213 states and 333 transitions. [2022-04-05 04:34:17,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:17,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-04-05 04:34:17,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:17,439 INFO L225 Difference]: With dead ends: 213 [2022-04-05 04:34:17,439 INFO L226 Difference]: Without dead ends: 213 [2022-04-05 04:34:17,440 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:17,441 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 24 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:17,441 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 501 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-05 04:34:17,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-04-05 04:34:17,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 196. [2022-04-05 04:34:17,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.612565445026178) internal successors, (308), 191 states have internal predecessors, (308), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:17,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 312 transitions. [2022-04-05 04:34:17,451 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 312 transitions. Word has length 64 [2022-04-05 04:34:17,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:17,451 INFO L478 AbstractCegarLoop]: Abstraction has 196 states and 312 transitions. [2022-04-05 04:34:17,451 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:17,451 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 312 transitions. [2022-04-05 04:34:17,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 04:34:17,453 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:17,453 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:17,454 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-05 04:34:17,454 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:17,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:17,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1918189260, now seen corresponding path program 1 times [2022-04-05 04:34:17,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:17,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838723887] [2022-04-05 04:34:17,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:17,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:17,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:17,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:17,652 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:34:17,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:17,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838723887] [2022-04-05 04:34:17,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838723887] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:17,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:17,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:17,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046113176] [2022-04-05 04:34:17,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:17,653 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:17,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:17,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:17,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:17,654 INFO L87 Difference]: Start difference. First operand 196 states and 312 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:19,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:19,951 INFO L93 Difference]: Finished difference Result 212 states and 331 transitions. [2022-04-05 04:34:19,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:19,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-05 04:34:19,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:19,953 INFO L225 Difference]: With dead ends: 212 [2022-04-05 04:34:19,953 INFO L226 Difference]: Without dead ends: 212 [2022-04-05 04:34:19,953 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:19,954 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 28 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:19,954 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 503 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:34:19,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-04-05 04:34:19,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 196. [2022-04-05 04:34:19,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.6073298429319371) internal successors, (307), 191 states have internal predecessors, (307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:19,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 311 transitions. [2022-04-05 04:34:19,962 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 311 transitions. Word has length 65 [2022-04-05 04:34:19,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:19,963 INFO L478 AbstractCegarLoop]: Abstraction has 196 states and 311 transitions. [2022-04-05 04:34:19,963 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:19,963 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 311 transitions. [2022-04-05 04:34:19,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 04:34:19,965 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:19,965 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:19,965 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-05 04:34:19,965 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:19,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:19,966 INFO L85 PathProgramCache]: Analyzing trace with hash -956367596, now seen corresponding path program 1 times [2022-04-05 04:34:19,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:19,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651240050] [2022-04-05 04:34:19,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:19,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:20,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:20,086 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:34:20,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:20,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651240050] [2022-04-05 04:34:20,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651240050] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:20,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:20,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:20,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254119642] [2022-04-05 04:34:20,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:20,088 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:20,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:20,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:20,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:20,089 INFO L87 Difference]: Start difference. First operand 196 states and 311 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:23,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:23,276 INFO L93 Difference]: Finished difference Result 315 states and 494 transitions. [2022-04-05 04:34:23,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:23,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-05 04:34:23,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:23,279 INFO L225 Difference]: With dead ends: 315 [2022-04-05 04:34:23,279 INFO L226 Difference]: Without dead ends: 315 [2022-04-05 04:34:23,279 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:23,280 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 151 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:23,280 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 362 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-04-05 04:34:23,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-04-05 04:34:23,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 208. [2022-04-05 04:34:23,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5911330049261083) internal successors, (323), 203 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:23,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 327 transitions. [2022-04-05 04:34:23,292 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 327 transitions. Word has length 65 [2022-04-05 04:34:23,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:23,294 INFO L478 AbstractCegarLoop]: Abstraction has 208 states and 327 transitions. [2022-04-05 04:34:23,294 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:23,294 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 327 transitions. [2022-04-05 04:34:23,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 04:34:23,301 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:23,301 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:23,301 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-05 04:34:23,301 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:23,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:23,302 INFO L85 PathProgramCache]: Analyzing trace with hash 631343316, now seen corresponding path program 1 times [2022-04-05 04:34:23,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:23,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333643189] [2022-04-05 04:34:23,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:23,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:23,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:23,481 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:34:23,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:23,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333643189] [2022-04-05 04:34:23,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333643189] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:23,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:23,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:23,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471025648] [2022-04-05 04:34:23,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:23,482 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:23,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:23,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:23,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:23,484 INFO L87 Difference]: Start difference. First operand 208 states and 327 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:24,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:26,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:28,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:28,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:28,922 INFO L93 Difference]: Finished difference Result 222 states and 344 transitions. [2022-04-05 04:34:28,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:28,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-05 04:34:28,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:28,924 INFO L225 Difference]: With dead ends: 222 [2022-04-05 04:34:28,924 INFO L226 Difference]: Without dead ends: 222 [2022-04-05 04:34:28,925 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:28,925 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 20 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:28,926 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 507 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-04-05 04:34:28,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-04-05 04:34:28,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 208. [2022-04-05 04:34:28,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5862068965517242) internal successors, (322), 203 states have internal predecessors, (322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:28,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 326 transitions. [2022-04-05 04:34:28,932 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 326 transitions. Word has length 65 [2022-04-05 04:34:28,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:28,932 INFO L478 AbstractCegarLoop]: Abstraction has 208 states and 326 transitions. [2022-04-05 04:34:28,933 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:28,933 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 326 transitions. [2022-04-05 04:34:28,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 04:34:28,934 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:28,934 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:28,934 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-05 04:34:28,934 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:28,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:28,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1301074508, now seen corresponding path program 1 times [2022-04-05 04:34:28,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:28,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511893972] [2022-04-05 04:34:28,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:28,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:29,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:29,097 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:34:29,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:29,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511893972] [2022-04-05 04:34:29,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511893972] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:29,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:29,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:29,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590671982] [2022-04-05 04:34:29,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:29,099 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:29,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:29,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:29,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:29,100 INFO L87 Difference]: Start difference. First operand 208 states and 326 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:31,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:32,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:32,452 INFO L93 Difference]: Finished difference Result 314 states and 489 transitions. [2022-04-05 04:34:32,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:32,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-05 04:34:32,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:32,454 INFO L225 Difference]: With dead ends: 314 [2022-04-05 04:34:32,454 INFO L226 Difference]: Without dead ends: 314 [2022-04-05 04:34:32,454 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:32,455 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 144 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:32,455 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 364 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-04-05 04:34:32,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-04-05 04:34:32,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 214. [2022-04-05 04:34:32,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5837320574162679) internal successors, (331), 209 states have internal predecessors, (331), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:32,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 335 transitions. [2022-04-05 04:34:32,463 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 335 transitions. Word has length 65 [2022-04-05 04:34:32,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:32,463 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 335 transitions. [2022-04-05 04:34:32,463 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:32,463 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 335 transitions. [2022-04-05 04:34:32,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-05 04:34:32,464 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:32,464 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:32,464 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-05 04:34:32,465 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:32,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:32,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1470127014, now seen corresponding path program 1 times [2022-04-05 04:34:32,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:32,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687959351] [2022-04-05 04:34:32,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:32,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:32,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:32,589 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:34:32,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:32,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687959351] [2022-04-05 04:34:32,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687959351] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:32,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:32,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:32,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361126176] [2022-04-05 04:34:32,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:32,590 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:32,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:32,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:32,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:32,591 INFO L87 Difference]: Start difference. First operand 214 states and 335 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:34,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:36,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:36,463 INFO L93 Difference]: Finished difference Result 227 states and 351 transitions. [2022-04-05 04:34:36,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:36,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-05 04:34:36,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:36,465 INFO L225 Difference]: With dead ends: 227 [2022-04-05 04:34:36,465 INFO L226 Difference]: Without dead ends: 227 [2022-04-05 04:34:36,465 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:36,466 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 22 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:36,466 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 509 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-04-05 04:34:36,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-04-05 04:34:36,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 214. [2022-04-05 04:34:36,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5789473684210527) internal successors, (330), 209 states have internal predecessors, (330), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:36,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 334 transitions. [2022-04-05 04:34:36,490 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 334 transitions. Word has length 66 [2022-04-05 04:34:36,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:36,490 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 334 transitions. [2022-04-05 04:34:36,490 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:36,491 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 334 transitions. [2022-04-05 04:34:36,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-05 04:34:36,491 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:36,491 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:36,492 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-05 04:34:36,492 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:36,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:36,492 INFO L85 PathProgramCache]: Analyzing trace with hash -633442992, now seen corresponding path program 1 times [2022-04-05 04:34:36,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:36,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874794562] [2022-04-05 04:34:36,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:36,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:36,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:36,621 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:34:36,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:36,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874794562] [2022-04-05 04:34:36,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874794562] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:36,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:36,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:36,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934546310] [2022-04-05 04:34:36,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:36,623 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:36,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:36,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:36,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:36,624 INFO L87 Difference]: Start difference. First operand 214 states and 334 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:38,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:39,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:39,216 INFO L93 Difference]: Finished difference Result 314 states and 485 transitions. [2022-04-05 04:34:39,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:39,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-04-05 04:34:39,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:39,218 INFO L225 Difference]: With dead ends: 314 [2022-04-05 04:34:39,218 INFO L226 Difference]: Without dead ends: 314 [2022-04-05 04:34:39,218 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:39,219 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 147 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:39,219 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 364 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-04-05 04:34:39,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-04-05 04:34:39,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 214. [2022-04-05 04:34:39,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5645933014354068) internal successors, (327), 209 states have internal predecessors, (327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:39,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 331 transitions. [2022-04-05 04:34:39,225 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 331 transitions. Word has length 67 [2022-04-05 04:34:39,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:39,225 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 331 transitions. [2022-04-05 04:34:39,225 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:39,225 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 331 transitions. [2022-04-05 04:34:39,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-05 04:34:39,226 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:39,226 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:39,226 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-05 04:34:39,226 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:39,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:39,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1852266313, now seen corresponding path program 1 times [2022-04-05 04:34:39,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:39,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638842667] [2022-04-05 04:34:39,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:39,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:39,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:39,354 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:34:39,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:39,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638842667] [2022-04-05 04:34:39,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638842667] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:39,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:39,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:39,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464172909] [2022-04-05 04:34:39,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:39,356 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:39,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:39,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:39,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:39,357 INFO L87 Difference]: Start difference. First operand 214 states and 331 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:42,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:42,957 INFO L93 Difference]: Finished difference Result 314 states and 482 transitions. [2022-04-05 04:34:42,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:42,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-04-05 04:34:42,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:42,960 INFO L225 Difference]: With dead ends: 314 [2022-04-05 04:34:42,960 INFO L226 Difference]: Without dead ends: 314 [2022-04-05 04:34:42,960 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:42,961 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 145 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:42,961 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 364 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-04-05 04:34:42,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-04-05 04:34:42,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 214. [2022-04-05 04:34:42,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5502392344497609) internal successors, (324), 209 states have internal predecessors, (324), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:42,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 328 transitions. [2022-04-05 04:34:42,967 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 328 transitions. Word has length 68 [2022-04-05 04:34:42,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:42,967 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 328 transitions. [2022-04-05 04:34:42,967 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:42,967 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 328 transitions. [2022-04-05 04:34:42,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-05 04:34:42,968 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:42,968 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:42,968 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-05 04:34:42,969 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:42,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:42,969 INFO L85 PathProgramCache]: Analyzing trace with hash 416669672, now seen corresponding path program 1 times [2022-04-05 04:34:42,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:42,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269151636] [2022-04-05 04:34:42,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:42,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:43,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:43,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:43,110 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:34:43,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:43,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269151636] [2022-04-05 04:34:43,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269151636] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:43,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:43,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:43,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992606210] [2022-04-05 04:34:43,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:43,111 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:43,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:43,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:43,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:43,112 INFO L87 Difference]: Start difference. First operand 214 states and 328 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:44,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:46,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:46,701 INFO L93 Difference]: Finished difference Result 256 states and 388 transitions. [2022-04-05 04:34:46,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:46,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-04-05 04:34:46,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:46,703 INFO L225 Difference]: With dead ends: 256 [2022-04-05 04:34:46,703 INFO L226 Difference]: Without dead ends: 256 [2022-04-05 04:34:46,703 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:46,704 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 30 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:46,704 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 523 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-04-05 04:34:46,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-04-05 04:34:46,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 236. [2022-04-05 04:34:46,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.5497835497835497) internal successors, (358), 231 states have internal predecessors, (358), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:46,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 362 transitions. [2022-04-05 04:34:46,710 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 362 transitions. Word has length 68 [2022-04-05 04:34:46,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:46,711 INFO L478 AbstractCegarLoop]: Abstraction has 236 states and 362 transitions. [2022-04-05 04:34:46,711 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:46,711 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 362 transitions. [2022-04-05 04:34:46,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-04-05 04:34:46,712 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:46,712 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:46,712 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-05 04:34:46,712 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:46,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:46,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1437140192, now seen corresponding path program 1 times [2022-04-05 04:34:46,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:46,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260713983] [2022-04-05 04:34:46,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:46,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:46,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:46,827 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:34:46,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:46,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260713983] [2022-04-05 04:34:46,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260713983] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:46,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:46,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:46,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090621728] [2022-04-05 04:34:46,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:46,828 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:46,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:46,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:46,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:46,829 INFO L87 Difference]: Start difference. First operand 236 states and 362 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:49,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:49,775 INFO L93 Difference]: Finished difference Result 375 states and 581 transitions. [2022-04-05 04:34:49,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:49,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-04-05 04:34:49,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:49,778 INFO L225 Difference]: With dead ends: 375 [2022-04-05 04:34:49,778 INFO L226 Difference]: Without dead ends: 375 [2022-04-05 04:34:49,778 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:49,779 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 144 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:49,779 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 604 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-04-05 04:34:49,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-04-05 04:34:49,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 252. [2022-04-05 04:34:49,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.534412955465587) internal successors, (379), 247 states have internal predecessors, (379), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:49,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 383 transitions. [2022-04-05 04:34:49,786 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 383 transitions. Word has length 81 [2022-04-05 04:34:49,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:49,786 INFO L478 AbstractCegarLoop]: Abstraction has 252 states and 383 transitions. [2022-04-05 04:34:49,786 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:49,786 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 383 transitions. [2022-04-05 04:34:49,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-04-05 04:34:49,787 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:49,787 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:49,787 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-05 04:34:49,788 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:49,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:49,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1133208978, now seen corresponding path program 1 times [2022-04-05 04:34:49,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:49,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199625162] [2022-04-05 04:34:49,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:49,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:49,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:49,921 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 04:34:49,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:49,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199625162] [2022-04-05 04:34:49,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199625162] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:49,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:49,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:49,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831207168] [2022-04-05 04:34:49,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:49,922 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:49,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:49,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:49,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:49,923 INFO L87 Difference]: Start difference. First operand 252 states and 383 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:52,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:53,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:53,541 INFO L93 Difference]: Finished difference Result 265 states and 398 transitions. [2022-04-05 04:34:53,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:53,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-04-05 04:34:53,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:53,543 INFO L225 Difference]: With dead ends: 265 [2022-04-05 04:34:53,543 INFO L226 Difference]: Without dead ends: 265 [2022-04-05 04:34:53,543 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:53,544 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 19 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:53,544 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 590 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-04-05 04:34:53,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-04-05 04:34:53,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 252. [2022-04-05 04:34:53,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.5303643724696356) internal successors, (378), 247 states have internal predecessors, (378), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:53,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 382 transitions. [2022-04-05 04:34:53,550 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 382 transitions. Word has length 82 [2022-04-05 04:34:53,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:53,551 INFO L478 AbstractCegarLoop]: Abstraction has 252 states and 382 transitions. [2022-04-05 04:34:53,551 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:53,551 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 382 transitions. [2022-04-05 04:34:53,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-04-05 04:34:53,552 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:53,552 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:53,552 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-05 04:34:53,552 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:53,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:53,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1416323598, now seen corresponding path program 1 times [2022-04-05 04:34:53,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:53,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655026233] [2022-04-05 04:34:53,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:53,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:53,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:53,672 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:34:53,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:53,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655026233] [2022-04-05 04:34:53,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655026233] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:53,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:53,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:53,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100302099] [2022-04-05 04:34:53,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:53,673 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:53,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:53,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:53,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:53,674 INFO L87 Difference]: Start difference. First operand 252 states and 382 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:56,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:57,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:57,235 INFO L93 Difference]: Finished difference Result 352 states and 533 transitions. [2022-04-05 04:34:57,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:57,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-04-05 04:34:57,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:57,237 INFO L225 Difference]: With dead ends: 352 [2022-04-05 04:34:57,237 INFO L226 Difference]: Without dead ends: 352 [2022-04-05 04:34:57,237 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:57,238 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 143 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:57,238 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 364 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-04-05 04:34:57,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-04-05 04:34:57,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 252. [2022-04-05 04:34:57,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.5182186234817814) internal successors, (375), 247 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:57,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 379 transitions. [2022-04-05 04:34:57,244 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 379 transitions. Word has length 82 [2022-04-05 04:34:57,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:57,245 INFO L478 AbstractCegarLoop]: Abstraction has 252 states and 379 transitions. [2022-04-05 04:34:57,245 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:57,245 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 379 transitions. [2022-04-05 04:34:57,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-04-05 04:34:57,245 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:57,246 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:57,246 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-05 04:34:57,246 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:57,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:57,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1457894331, now seen corresponding path program 1 times [2022-04-05 04:34:57,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:57,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225717952] [2022-04-05 04:34:57,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:57,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:57,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:57,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:57,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:57,380 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-05 04:34:57,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:57,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225717952] [2022-04-05 04:34:57,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225717952] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:57,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:57,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 04:34:57,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934893646] [2022-04-05 04:34:57,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:57,381 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 04:34:57,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:57,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 04:34:57,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:57,382 INFO L87 Difference]: Start difference. First operand 252 states and 379 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:00,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:01,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:02,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:03,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:03,141 INFO L93 Difference]: Finished difference Result 261 states and 390 transitions. [2022-04-05 04:35:03,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 04:35:03,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-04-05 04:35:03,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:03,143 INFO L225 Difference]: With dead ends: 261 [2022-04-05 04:35:03,143 INFO L226 Difference]: Without dead ends: 261 [2022-04-05 04:35:03,143 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-05 04:35:03,144 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 3 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:03,144 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 657 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-04-05 04:35:03,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-04-05 04:35:03,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2022-04-05 04:35:03,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5078125) internal successors, (386), 256 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:03,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 390 transitions. [2022-04-05 04:35:03,150 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 390 transitions. Word has length 83 [2022-04-05 04:35:03,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:03,150 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 390 transitions. [2022-04-05 04:35:03,151 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:03,151 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 390 transitions. [2022-04-05 04:35:03,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-05 04:35:03,152 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:03,152 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:03,152 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-05 04:35:03,152 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:03,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:03,152 INFO L85 PathProgramCache]: Analyzing trace with hash -565644653, now seen corresponding path program 1 times [2022-04-05 04:35:03,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:03,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131100929] [2022-04-05 04:35:03,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:03,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:03,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:03,289 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:35:03,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:03,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131100929] [2022-04-05 04:35:03,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131100929] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:03,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:03,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:03,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726959895] [2022-04-05 04:35:03,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:03,292 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:03,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:03,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:03,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:03,292 INFO L87 Difference]: Start difference. First operand 261 states and 390 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:06,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:06,468 INFO L93 Difference]: Finished difference Result 360 states and 538 transitions. [2022-04-05 04:35:06,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:06,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-04-05 04:35:06,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:06,470 INFO L225 Difference]: With dead ends: 360 [2022-04-05 04:35:06,470 INFO L226 Difference]: Without dead ends: 360 [2022-04-05 04:35:06,471 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:06,471 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 145 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:06,471 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 366 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-04-05 04:35:06,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-04-05 04:35:06,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 261. [2022-04-05 04:35:06,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.4921875) internal successors, (382), 256 states have internal predecessors, (382), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:06,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 386 transitions. [2022-04-05 04:35:06,477 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 386 transitions. Word has length 84 [2022-04-05 04:35:06,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:06,477 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 386 transitions. [2022-04-05 04:35:06,477 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:06,477 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 386 transitions. [2022-04-05 04:35:06,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-04-05 04:35:06,478 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:06,478 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:06,478 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-05 04:35:06,479 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:06,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:06,479 INFO L85 PathProgramCache]: Analyzing trace with hash 681592199, now seen corresponding path program 1 times [2022-04-05 04:35:06,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:06,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743733430] [2022-04-05 04:35:06,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:06,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:06,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:06,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:06,602 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:35:06,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:06,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743733430] [2022-04-05 04:35:06,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743733430] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:06,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:06,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:06,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097523947] [2022-04-05 04:35:06,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:06,604 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:06,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:06,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:06,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:06,604 INFO L87 Difference]: Start difference. First operand 261 states and 386 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:09,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:11,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:12,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:12,168 INFO L93 Difference]: Finished difference Result 358 states and 530 transitions. [2022-04-05 04:35:12,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:12,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-04-05 04:35:12,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:12,172 INFO L225 Difference]: With dead ends: 358 [2022-04-05 04:35:12,173 INFO L226 Difference]: Without dead ends: 358 [2022-04-05 04:35:12,173 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:12,173 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 80 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:12,173 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 513 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 530 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 04:35:12,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-04-05 04:35:12,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 303. [2022-04-05 04:35:12,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 298 states have (on average 1.5100671140939597) internal successors, (450), 298 states have internal predecessors, (450), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:12,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 454 transitions. [2022-04-05 04:35:12,180 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 454 transitions. Word has length 90 [2022-04-05 04:35:12,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:12,180 INFO L478 AbstractCegarLoop]: Abstraction has 303 states and 454 transitions. [2022-04-05 04:35:12,180 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:12,180 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 454 transitions. [2022-04-05 04:35:12,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-04-05 04:35:12,181 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:12,181 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:12,181 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-05 04:35:12,182 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:12,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:12,182 INFO L85 PathProgramCache]: Analyzing trace with hash 805665446, now seen corresponding path program 1 times [2022-04-05 04:35:12,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:12,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197123378] [2022-04-05 04:35:12,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:12,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:12,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:12,326 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:35:12,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:12,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197123378] [2022-04-05 04:35:12,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197123378] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:12,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:12,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:12,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581992921] [2022-04-05 04:35:12,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:12,327 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:12,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:12,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:12,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:12,327 INFO L87 Difference]: Start difference. First operand 303 states and 454 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:13,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:15,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:16,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:16,142 INFO L93 Difference]: Finished difference Result 402 states and 605 transitions. [2022-04-05 04:35:16,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:16,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-04-05 04:35:16,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:16,145 INFO L225 Difference]: With dead ends: 402 [2022-04-05 04:35:16,145 INFO L226 Difference]: Without dead ends: 402 [2022-04-05 04:35:16,145 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:16,146 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 117 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:16,146 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 388 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-04-05 04:35:16,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-04-05 04:35:16,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 283. [2022-04-05 04:35:16,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5287769784172662) internal successors, (425), 278 states have internal predecessors, (425), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:16,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 429 transitions. [2022-04-05 04:35:16,155 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 429 transitions. Word has length 90 [2022-04-05 04:35:16,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:16,155 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 429 transitions. [2022-04-05 04:35:16,155 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:16,155 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 429 transitions. [2022-04-05 04:35:16,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-04-05 04:35:16,156 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:16,157 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:16,157 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-05 04:35:16,157 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:16,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:16,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1821101810, now seen corresponding path program 1 times [2022-04-05 04:35:16,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:16,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532320009] [2022-04-05 04:35:16,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:16,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:16,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:16,308 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:35:16,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:16,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532320009] [2022-04-05 04:35:16,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532320009] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:16,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:16,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:16,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276131553] [2022-04-05 04:35:16,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:16,310 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:16,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:16,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:16,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:16,311 INFO L87 Difference]: Start difference. First operand 283 states and 429 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:17,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:20,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:21,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:21,598 INFO L93 Difference]: Finished difference Result 377 states and 568 transitions. [2022-04-05 04:35:21,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:21,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-04-05 04:35:21,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:21,601 INFO L225 Difference]: With dead ends: 377 [2022-04-05 04:35:21,601 INFO L226 Difference]: Without dead ends: 377 [2022-04-05 04:35:21,601 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:21,601 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 86 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:21,602 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 519 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 524 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-04-05 04:35:21,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-04-05 04:35:21,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 317. [2022-04-05 04:35:21,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 312 states have (on average 1.5320512820512822) internal successors, (478), 312 states have internal predecessors, (478), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:21,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 482 transitions. [2022-04-05 04:35:21,608 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 482 transitions. Word has length 118 [2022-04-05 04:35:21,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:21,608 INFO L478 AbstractCegarLoop]: Abstraction has 317 states and 482 transitions. [2022-04-05 04:35:21,608 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:21,608 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 482 transitions. [2022-04-05 04:35:21,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-04-05 04:35:21,609 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:21,609 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:21,610 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-05 04:35:21,610 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:21,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:21,610 INFO L85 PathProgramCache]: Analyzing trace with hash -866872915, now seen corresponding path program 1 times [2022-04-05 04:35:21,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:21,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119515866] [2022-04-05 04:35:21,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:21,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:21,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:21,756 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-05 04:35:21,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:21,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119515866] [2022-04-05 04:35:21,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119515866] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:21,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:21,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:21,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325122028] [2022-04-05 04:35:21,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:21,757 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:21,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:21,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:21,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:21,758 INFO L87 Difference]: Start difference. First operand 317 states and 482 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:23,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:25,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:26,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:26,014 INFO L93 Difference]: Finished difference Result 362 states and 544 transitions. [2022-04-05 04:35:26,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:26,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-04-05 04:35:26,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:26,016 INFO L225 Difference]: With dead ends: 362 [2022-04-05 04:35:26,016 INFO L226 Difference]: Without dead ends: 362 [2022-04-05 04:35:26,017 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:26,018 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 32 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:26,018 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 613 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-04-05 04:35:26,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-04-05 04:35:26,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 341. [2022-04-05 04:35:26,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 336 states have (on average 1.5267857142857142) internal successors, (513), 336 states have internal predecessors, (513), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:26,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 517 transitions. [2022-04-05 04:35:26,030 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 517 transitions. Word has length 118 [2022-04-05 04:35:26,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:26,031 INFO L478 AbstractCegarLoop]: Abstraction has 341 states and 517 transitions. [2022-04-05 04:35:26,033 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:26,033 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 517 transitions. [2022-04-05 04:35:26,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-05 04:35:26,034 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:26,035 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:26,035 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-05 04:35:26,036 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:26,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:26,037 INFO L85 PathProgramCache]: Analyzing trace with hash 590170977, now seen corresponding path program 1 times [2022-04-05 04:35:26,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:26,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504789266] [2022-04-05 04:35:26,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:26,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:26,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:26,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:26,159 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-04-05 04:35:26,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:26,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504789266] [2022-04-05 04:35:26,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504789266] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:26,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:26,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:26,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269957606] [2022-04-05 04:35:26,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:26,161 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:26,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:26,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:26,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:26,161 INFO L87 Difference]: Start difference. First operand 341 states and 517 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:28,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:28,762 INFO L93 Difference]: Finished difference Result 348 states and 526 transitions. [2022-04-05 04:35:28,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:28,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-04-05 04:35:28,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:28,764 INFO L225 Difference]: With dead ends: 348 [2022-04-05 04:35:28,764 INFO L226 Difference]: Without dead ends: 348 [2022-04-05 04:35:28,764 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:28,765 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 30 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:28,765 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 543 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-05 04:35:28,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-04-05 04:35:28,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 341. [2022-04-05 04:35:28,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 336 states have (on average 1.5238095238095237) internal successors, (512), 336 states have internal predecessors, (512), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:28,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 516 transitions. [2022-04-05 04:35:28,771 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 516 transitions. Word has length 123 [2022-04-05 04:35:28,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:28,772 INFO L478 AbstractCegarLoop]: Abstraction has 341 states and 516 transitions. [2022-04-05 04:35:28,772 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:28,772 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 516 transitions. [2022-04-05 04:35:28,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-05 04:35:28,773 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:28,773 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:28,773 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-05 04:35:28,773 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:28,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:28,774 INFO L85 PathProgramCache]: Analyzing trace with hash 52353177, now seen corresponding path program 1 times [2022-04-05 04:35:28,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:28,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300109863] [2022-04-05 04:35:28,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:28,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:28,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:28,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:28,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:28,974 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:35:28,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:28,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300109863] [2022-04-05 04:35:28,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300109863] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:28,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:28,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:28,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123973699] [2022-04-05 04:35:28,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:28,975 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:28,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:28,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:28,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:28,976 INFO L87 Difference]: Start difference. First operand 341 states and 516 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:30,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:32,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:33,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:33,735 INFO L93 Difference]: Finished difference Result 458 states and 688 transitions. [2022-04-05 04:35:33,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:33,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-04-05 04:35:33,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:33,741 INFO L225 Difference]: With dead ends: 458 [2022-04-05 04:35:33,741 INFO L226 Difference]: Without dead ends: 458 [2022-04-05 04:35:33,741 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:33,742 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 119 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:33,742 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 364 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-04-05 04:35:33,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-04-05 04:35:33,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 378. [2022-04-05 04:35:33,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.5335120643431635) internal successors, (572), 373 states have internal predecessors, (572), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:33,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 576 transitions. [2022-04-05 04:35:33,776 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 576 transitions. Word has length 123 [2022-04-05 04:35:33,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:33,776 INFO L478 AbstractCegarLoop]: Abstraction has 378 states and 576 transitions. [2022-04-05 04:35:33,777 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:33,777 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 576 transitions. [2022-04-05 04:35:33,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-04-05 04:35:33,778 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:33,778 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:33,778 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-05 04:35:33,778 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:33,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:33,779 INFO L85 PathProgramCache]: Analyzing trace with hash -857753857, now seen corresponding path program 1 times [2022-04-05 04:35:33,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:33,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083678345] [2022-04-05 04:35:33,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:33,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:33,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:33,923 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:35:33,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:33,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083678345] [2022-04-05 04:35:33,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083678345] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:33,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:33,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:33,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052765835] [2022-04-05 04:35:33,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:33,925 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:33,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:33,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:33,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:33,926 INFO L87 Difference]: Start difference. First operand 378 states and 576 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:36,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:39,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:39,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:39,616 INFO L93 Difference]: Finished difference Result 436 states and 658 transitions. [2022-04-05 04:35:39,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:39,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-04-05 04:35:39,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:39,618 INFO L225 Difference]: With dead ends: 436 [2022-04-05 04:35:39,618 INFO L226 Difference]: Without dead ends: 436 [2022-04-05 04:35:39,618 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:39,619 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 77 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:39,619 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 495 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 508 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-05 04:35:39,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-04-05 04:35:39,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 384. [2022-04-05 04:35:39,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 379 states have (on average 1.5356200527704484) internal successors, (582), 379 states have internal predecessors, (582), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:39,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 586 transitions. [2022-04-05 04:35:39,625 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 586 transitions. Word has length 124 [2022-04-05 04:35:39,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:39,626 INFO L478 AbstractCegarLoop]: Abstraction has 384 states and 586 transitions. [2022-04-05 04:35:39,626 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:39,626 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 586 transitions. [2022-04-05 04:35:39,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-05 04:35:39,627 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:39,627 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:39,627 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-05 04:35:39,628 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:39,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:39,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1073496446, now seen corresponding path program 1 times [2022-04-05 04:35:39,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:39,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266154284] [2022-04-05 04:35:39,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:39,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:39,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:39,772 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:35:39,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:39,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266154284] [2022-04-05 04:35:39,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266154284] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:39,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:39,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:39,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927446169] [2022-04-05 04:35:39,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:39,773 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:39,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:39,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:39,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:39,774 INFO L87 Difference]: Start difference. First operand 384 states and 586 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:40,957 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:42,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:44,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:44,847 INFO L93 Difference]: Finished difference Result 427 states and 642 transitions. [2022-04-05 04:35:44,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:44,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-04-05 04:35:44,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:44,849 INFO L225 Difference]: With dead ends: 427 [2022-04-05 04:35:44,849 INFO L226 Difference]: Without dead ends: 427 [2022-04-05 04:35:44,849 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:44,849 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 59 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:44,849 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 501 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 502 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-04-05 04:35:44,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-04-05 04:35:44,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 387. [2022-04-05 04:35:44,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.531413612565445) internal successors, (585), 382 states have internal predecessors, (585), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:44,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 589 transitions. [2022-04-05 04:35:44,856 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 589 transitions. Word has length 132 [2022-04-05 04:35:44,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:44,856 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 589 transitions. [2022-04-05 04:35:44,857 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:44,857 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 589 transitions. [2022-04-05 04:35:44,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-04-05 04:35:44,858 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:44,858 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:44,858 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-05 04:35:44,858 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:44,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:44,859 INFO L85 PathProgramCache]: Analyzing trace with hash 641664460, now seen corresponding path program 1 times [2022-04-05 04:35:44,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:44,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298692451] [2022-04-05 04:35:44,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:44,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:44,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:44,991 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 04:35:44,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:44,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298692451] [2022-04-05 04:35:44,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298692451] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:44,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:44,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:44,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140421712] [2022-04-05 04:35:44,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:44,992 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:44,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:44,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:44,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:44,993 INFO L87 Difference]: Start difference. First operand 387 states and 589 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:48,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:48,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:48,441 INFO L93 Difference]: Finished difference Result 427 states and 641 transitions. [2022-04-05 04:35:48,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:48,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2022-04-05 04:35:48,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:48,442 INFO L225 Difference]: With dead ends: 427 [2022-04-05 04:35:48,442 INFO L226 Difference]: Without dead ends: 427 [2022-04-05 04:35:48,443 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:48,443 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 75 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:48,443 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 513 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-05 04:35:48,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-04-05 04:35:48,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 387. [2022-04-05 04:35:48,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5287958115183247) internal successors, (584), 382 states have internal predecessors, (584), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:48,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 588 transitions. [2022-04-05 04:35:48,450 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 588 transitions. Word has length 140 [2022-04-05 04:35:48,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:48,450 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 588 transitions. [2022-04-05 04:35:48,450 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:48,450 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 588 transitions. [2022-04-05 04:35:48,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-04-05 04:35:48,451 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:48,451 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:48,452 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-05 04:35:48,452 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:48,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:48,452 INFO L85 PathProgramCache]: Analyzing trace with hash 627414315, now seen corresponding path program 1 times [2022-04-05 04:35:48,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:48,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250571033] [2022-04-05 04:35:48,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:48,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:48,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:48,632 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-05 04:35:48,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:48,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250571033] [2022-04-05 04:35:48,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250571033] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:48,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:48,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:48,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39117789] [2022-04-05 04:35:48,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:48,634 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:48,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:48,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:48,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:48,635 INFO L87 Difference]: Start difference. First operand 387 states and 588 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:51,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:52,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:52,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:52,685 INFO L93 Difference]: Finished difference Result 540 states and 819 transitions. [2022-04-05 04:35:52,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:52,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2022-04-05 04:35:52,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:52,687 INFO L225 Difference]: With dead ends: 540 [2022-04-05 04:35:52,687 INFO L226 Difference]: Without dead ends: 540 [2022-04-05 04:35:52,688 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:52,688 INFO L913 BasicCegarLoop]: 143 mSDtfsCounter, 123 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:52,688 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 400 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-04-05 04:35:52,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-04-05 04:35:52,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 451. [2022-04-05 04:35:52,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 446 states have (on average 1.5358744394618835) internal successors, (685), 446 states have internal predecessors, (685), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:52,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 689 transitions. [2022-04-05 04:35:52,695 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 689 transitions. Word has length 140 [2022-04-05 04:35:52,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:52,695 INFO L478 AbstractCegarLoop]: Abstraction has 451 states and 689 transitions. [2022-04-05 04:35:52,695 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:52,696 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 689 transitions. [2022-04-05 04:35:52,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-05 04:35:52,697 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:52,697 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:52,697 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-05 04:35:52,697 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:52,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:52,698 INFO L85 PathProgramCache]: Analyzing trace with hash -946684190, now seen corresponding path program 1 times [2022-04-05 04:35:52,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:52,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017973883] [2022-04-05 04:35:52,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:52,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:52,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:52,816 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-05 04:35:52,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:52,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017973883] [2022-04-05 04:35:52,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017973883] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:52,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:52,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:52,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644563312] [2022-04-05 04:35:52,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:52,817 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:52,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:52,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:52,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:52,818 INFO L87 Difference]: Start difference. First operand 451 states and 689 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:54,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:55,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:56,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:56,285 INFO L93 Difference]: Finished difference Result 518 states and 777 transitions. [2022-04-05 04:35:56,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:56,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-04-05 04:35:56,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:56,287 INFO L225 Difference]: With dead ends: 518 [2022-04-05 04:35:56,287 INFO L226 Difference]: Without dead ends: 518 [2022-04-05 04:35:56,287 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:56,288 INFO L913 BasicCegarLoop]: 147 mSDtfsCounter, 139 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:56,288 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 408 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-05 04:35:56,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-04-05 04:35:56,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 451. [2022-04-05 04:35:56,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 446 states have (on average 1.5179372197309418) internal successors, (677), 446 states have internal predecessors, (677), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:56,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 681 transitions. [2022-04-05 04:35:56,296 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 681 transitions. Word has length 145 [2022-04-05 04:35:56,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:56,296 INFO L478 AbstractCegarLoop]: Abstraction has 451 states and 681 transitions. [2022-04-05 04:35:56,296 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:56,296 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 681 transitions. [2022-04-05 04:35:56,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-05 04:35:56,297 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:56,298 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:56,298 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-05 04:35:56,298 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:56,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:56,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1964442410, now seen corresponding path program 1 times [2022-04-05 04:35:56,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:56,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30334179] [2022-04-05 04:35:56,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:56,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:56,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:56,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:56,443 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 04:35:56,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:56,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30334179] [2022-04-05 04:35:56,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30334179] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:56,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:56,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:56,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672363362] [2022-04-05 04:35:56,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:56,444 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:56,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:56,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:56,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:56,445 INFO L87 Difference]: Start difference. First operand 451 states and 681 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:58,891 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:00,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:01,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:01,104 INFO L93 Difference]: Finished difference Result 558 states and 834 transitions. [2022-04-05 04:36:01,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:36:01,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-04-05 04:36:01,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:01,106 INFO L225 Difference]: With dead ends: 558 [2022-04-05 04:36:01,106 INFO L226 Difference]: Without dead ends: 558 [2022-04-05 04:36:01,107 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:36:01,107 INFO L913 BasicCegarLoop]: 147 mSDtfsCounter, 119 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:01,107 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 408 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-04-05 04:36:01,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-04-05 04:36:01,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 481. [2022-04-05 04:36:01,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.5084033613445378) internal successors, (718), 476 states have internal predecessors, (718), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:01,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 722 transitions. [2022-04-05 04:36:01,115 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 722 transitions. Word has length 145 [2022-04-05 04:36:01,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:01,116 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 722 transitions. [2022-04-05 04:36:01,116 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:01,116 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 722 transitions. [2022-04-05 04:36:01,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-05 04:36:01,117 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:01,117 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:01,117 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-05 04:36:01,117 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:01,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:01,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1579019717, now seen corresponding path program 1 times [2022-04-05 04:36:01,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:01,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378911398] [2022-04-05 04:36:01,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:01,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:01,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:01,242 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 04:36:01,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:01,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378911398] [2022-04-05 04:36:01,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378911398] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:01,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:01,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:36:01,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152355443] [2022-04-05 04:36:01,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:01,243 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:36:01,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:01,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:36:01,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:36:01,243 INFO L87 Difference]: Start difference. First operand 481 states and 722 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:02,337 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:04,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:05,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:06,957 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:07,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:07,412 INFO L93 Difference]: Finished difference Result 548 states and 812 transitions. [2022-04-05 04:36:07,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:36:07,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-04-05 04:36:07,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:07,414 INFO L225 Difference]: With dead ends: 548 [2022-04-05 04:36:07,414 INFO L226 Difference]: Without dead ends: 548 [2022-04-05 04:36:07,415 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:36:07,415 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 118 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:07,415 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 384 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-04-05 04:36:07,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-04-05 04:36:07,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 481. [2022-04-05 04:36:07,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.495798319327731) internal successors, (712), 476 states have internal predecessors, (712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:07,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 716 transitions. [2022-04-05 04:36:07,423 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 716 transitions. Word has length 146 [2022-04-05 04:36:07,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:07,423 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 716 transitions. [2022-04-05 04:36:07,423 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:07,423 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 716 transitions. [2022-04-05 04:36:07,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-05 04:36:07,424 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:07,425 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:07,425 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-05 04:36:07,425 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:07,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:07,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1397412188, now seen corresponding path program 1 times [2022-04-05 04:36:07,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:07,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952756321] [2022-04-05 04:36:07,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:07,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:07,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:07,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:07,563 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-05 04:36:07,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:07,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952756321] [2022-04-05 04:36:07,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952756321] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:07,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:07,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:36:07,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178111516] [2022-04-05 04:36:07,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:07,564 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:36:07,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:07,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:36:07,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:36:07,565 INFO L87 Difference]: Start difference. First operand 481 states and 716 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:09,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:11,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:11,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:11,469 INFO L93 Difference]: Finished difference Result 548 states and 810 transitions. [2022-04-05 04:36:11,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:36:11,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-04-05 04:36:11,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:11,471 INFO L225 Difference]: With dead ends: 548 [2022-04-05 04:36:11,471 INFO L226 Difference]: Without dead ends: 548 [2022-04-05 04:36:11,471 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:36:11,472 INFO L913 BasicCegarLoop]: 147 mSDtfsCounter, 110 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:11,472 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 408 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-04-05 04:36:11,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-04-05 04:36:11,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 481. [2022-04-05 04:36:11,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.4915966386554622) internal successors, (710), 476 states have internal predecessors, (710), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:11,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 714 transitions. [2022-04-05 04:36:11,480 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 714 transitions. Word has length 146 [2022-04-05 04:36:11,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:11,480 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 714 transitions. [2022-04-05 04:36:11,480 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:11,480 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 714 transitions. [2022-04-05 04:36:11,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-04-05 04:36:11,481 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:11,481 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:11,482 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-05 04:36:11,482 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:11,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:11,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1522661907, now seen corresponding path program 1 times [2022-04-05 04:36:11,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:11,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482887331] [2022-04-05 04:36:11,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:11,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:11,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:11,607 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 04:36:11,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:11,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482887331] [2022-04-05 04:36:11,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482887331] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:11,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:11,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:36:11,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165314804] [2022-04-05 04:36:11,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:11,608 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:36:11,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:11,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:36:11,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:36:11,609 INFO L87 Difference]: Start difference. First operand 481 states and 714 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:14,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:15,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:16,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:16,067 INFO L93 Difference]: Finished difference Result 509 states and 752 transitions. [2022-04-05 04:36:16,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:36:16,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-04-05 04:36:16,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:16,069 INFO L225 Difference]: With dead ends: 509 [2022-04-05 04:36:16,069 INFO L226 Difference]: Without dead ends: 509 [2022-04-05 04:36:16,069 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:36:16,069 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 60 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:16,069 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 529 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-04-05 04:36:16,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-04-05 04:36:16,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 481. [2022-04-05 04:36:16,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.4894957983193278) internal successors, (709), 476 states have internal predecessors, (709), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:16,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 713 transitions. [2022-04-05 04:36:16,077 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 713 transitions. Word has length 148 [2022-04-05 04:36:16,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:16,077 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 713 transitions. [2022-04-05 04:36:16,077 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:16,077 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 713 transitions. [2022-04-05 04:36:16,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-04-05 04:36:16,078 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:16,079 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:16,079 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-05 04:36:16,079 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:16,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:16,079 INFO L85 PathProgramCache]: Analyzing trace with hash -109907680, now seen corresponding path program 1 times [2022-04-05 04:36:16,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:16,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728998905] [2022-04-05 04:36:16,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:16,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:16,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:16,214 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 04:36:16,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:16,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728998905] [2022-04-05 04:36:16,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728998905] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:16,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:16,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:36:16,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619230] [2022-04-05 04:36:16,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:16,215 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:36:16,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:16,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:36:16,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:36:16,216 INFO L87 Difference]: Start difference. First operand 481 states and 713 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:18,938 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:20,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:21,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:21,440 INFO L93 Difference]: Finished difference Result 548 states and 802 transitions. [2022-04-05 04:36:21,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:36:21,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-04-05 04:36:21,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:21,442 INFO L225 Difference]: With dead ends: 548 [2022-04-05 04:36:21,442 INFO L226 Difference]: Without dead ends: 548 [2022-04-05 04:36:21,442 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:36:21,442 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 118 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:21,443 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 384 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-04-05 04:36:21,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-04-05 04:36:21,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 481. [2022-04-05 04:36:21,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.4747899159663866) internal successors, (702), 476 states have internal predecessors, (702), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:21,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 706 transitions. [2022-04-05 04:36:21,450 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 706 transitions. Word has length 149 [2022-04-05 04:36:21,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:21,450 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 706 transitions. [2022-04-05 04:36:21,450 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:21,450 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 706 transitions. [2022-04-05 04:36:21,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-04-05 04:36:21,452 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:21,452 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:21,452 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-05 04:36:21,452 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:21,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:21,453 INFO L85 PathProgramCache]: Analyzing trace with hash 2073111519, now seen corresponding path program 1 times [2022-04-05 04:36:21,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:21,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149826294] [2022-04-05 04:36:21,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:21,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:21,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:21,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:21,566 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-04-05 04:36:21,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:21,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149826294] [2022-04-05 04:36:21,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149826294] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:21,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:21,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:36:21,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798171601] [2022-04-05 04:36:21,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:21,567 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:36:21,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:21,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:36:21,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:36:21,568 INFO L87 Difference]: Start difference. First operand 481 states and 706 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:22,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:25,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:25,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:25,659 INFO L93 Difference]: Finished difference Result 927 states and 1359 transitions. [2022-04-05 04:36:25,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:36:25,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-04-05 04:36:25,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:25,662 INFO L225 Difference]: With dead ends: 927 [2022-04-05 04:36:25,662 INFO L226 Difference]: Without dead ends: 927 [2022-04-05 04:36:25,662 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:36:25,663 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 133 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:25,663 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 447 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-04-05 04:36:25,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2022-04-05 04:36:25,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 925. [2022-04-05 04:36:25,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 920 states have (on average 1.4717391304347827) internal successors, (1354), 920 states have internal predecessors, (1354), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:25,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1358 transitions. [2022-04-05 04:36:25,675 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1358 transitions. Word has length 154 [2022-04-05 04:36:25,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:25,676 INFO L478 AbstractCegarLoop]: Abstraction has 925 states and 1358 transitions. [2022-04-05 04:36:25,676 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:25,676 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1358 transitions. [2022-04-05 04:36:25,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-04-05 04:36:25,678 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:25,678 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:25,678 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-05 04:36:25,678 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:25,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:25,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1086528830, now seen corresponding path program 1 times [2022-04-05 04:36:25,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:25,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926277119] [2022-04-05 04:36:25,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:25,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:25,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:25,790 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-04-05 04:36:25,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:25,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926277119] [2022-04-05 04:36:25,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926277119] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:25,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:25,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:36:25,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298022544] [2022-04-05 04:36:25,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:25,791 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:36:25,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:25,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:36:25,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:36:25,792 INFO L87 Difference]: Start difference. First operand 925 states and 1358 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:27,597 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:29,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:29,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:29,508 INFO L93 Difference]: Finished difference Result 952 states and 1393 transitions. [2022-04-05 04:36:29,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:36:29,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-04-05 04:36:29,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:29,512 INFO L225 Difference]: With dead ends: 952 [2022-04-05 04:36:29,512 INFO L226 Difference]: Without dead ends: 952 [2022-04-05 04:36:29,512 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:36:29,513 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:29,515 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 423 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-04-05 04:36:29,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2022-04-05 04:36:29,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 952. [2022-04-05 04:36:29,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 947 states have (on average 1.4667370644139388) internal successors, (1389), 947 states have internal predecessors, (1389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:29,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1393 transitions. [2022-04-05 04:36:29,528 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1393 transitions. Word has length 154 [2022-04-05 04:36:29,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:29,528 INFO L478 AbstractCegarLoop]: Abstraction has 952 states and 1393 transitions. [2022-04-05 04:36:29,529 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:29,529 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1393 transitions. [2022-04-05 04:36:29,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-04-05 04:36:29,531 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:29,531 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:29,532 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-05 04:36:29,532 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:29,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:29,532 INFO L85 PathProgramCache]: Analyzing trace with hash 794143005, now seen corresponding path program 1 times [2022-04-05 04:36:29,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:29,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541373530] [2022-04-05 04:36:29,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:29,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:29,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:29,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:29,640 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-04-05 04:36:29,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:29,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541373530] [2022-04-05 04:36:29,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541373530] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:29,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:29,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:36:29,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739904635] [2022-04-05 04:36:29,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:29,642 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:36:29,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:29,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:36:29,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:36:29,642 INFO L87 Difference]: Start difference. First operand 952 states and 1393 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:32,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:32,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:32,627 INFO L93 Difference]: Finished difference Result 954 states and 1395 transitions. [2022-04-05 04:36:32,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:36:32,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-04-05 04:36:32,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:32,630 INFO L225 Difference]: With dead ends: 954 [2022-04-05 04:36:32,630 INFO L226 Difference]: Without dead ends: 954 [2022-04-05 04:36:32,630 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:36:32,630 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:32,631 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 402 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-04-05 04:36:32,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2022-04-05 04:36:32,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 954. [2022-04-05 04:36:32,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 949 states have (on average 1.4657534246575343) internal successors, (1391), 949 states have internal predecessors, (1391), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:32,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1395 transitions. [2022-04-05 04:36:32,643 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1395 transitions. Word has length 154 [2022-04-05 04:36:32,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:32,643 INFO L478 AbstractCegarLoop]: Abstraction has 954 states and 1395 transitions. [2022-04-05 04:36:32,644 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:32,644 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1395 transitions. [2022-04-05 04:36:32,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-04-05 04:36:32,646 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:32,646 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:32,646 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-05 04:36:32,646 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:32,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:32,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1349201162, now seen corresponding path program 1 times [2022-04-05 04:36:32,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:32,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066739803] [2022-04-05 04:36:32,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:32,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:32,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:32,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:32,783 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-05 04:36:32,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:32,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066739803] [2022-04-05 04:36:32,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066739803] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:32,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:32,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:36:32,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215272833] [2022-04-05 04:36:32,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:32,785 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:36:32,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:32,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:36:32,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:36:32,786 INFO L87 Difference]: Start difference. First operand 954 states and 1395 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:34,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:37,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:39,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:39,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:39,413 INFO L93 Difference]: Finished difference Result 995 states and 1444 transitions. [2022-04-05 04:36:39,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:36:39,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-04-05 04:36:39,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:39,415 INFO L225 Difference]: With dead ends: 995 [2022-04-05 04:36:39,415 INFO L226 Difference]: Without dead ends: 995 [2022-04-05 04:36:39,416 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:36:39,416 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 42 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:39,416 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 545 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 470 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-04-05 04:36:39,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2022-04-05 04:36:39,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 954. [2022-04-05 04:36:39,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 949 states have (on average 1.463645943097998) internal successors, (1389), 949 states have internal predecessors, (1389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:39,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1393 transitions. [2022-04-05 04:36:39,428 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1393 transitions. Word has length 155 [2022-04-05 04:36:39,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:39,429 INFO L478 AbstractCegarLoop]: Abstraction has 954 states and 1393 transitions. [2022-04-05 04:36:39,429 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:39,429 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1393 transitions. [2022-04-05 04:36:39,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-04-05 04:36:39,431 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:39,431 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:39,431 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-05 04:36:39,431 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:39,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:39,432 INFO L85 PathProgramCache]: Analyzing trace with hash 753577337, now seen corresponding path program 1 times [2022-04-05 04:36:39,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:39,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686310656] [2022-04-05 04:36:39,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:39,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:39,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:39,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:39,552 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-05 04:36:39,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:39,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686310656] [2022-04-05 04:36:39,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686310656] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:39,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:39,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:36:39,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716906123] [2022-04-05 04:36:39,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:39,553 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:36:39,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:39,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:36:39,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:36:39,554 INFO L87 Difference]: Start difference. First operand 954 states and 1393 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:42,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:43,723 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:44,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:44,097 INFO L93 Difference]: Finished difference Result 991 states and 1438 transitions. [2022-04-05 04:36:44,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:36:44,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-04-05 04:36:44,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:44,100 INFO L225 Difference]: With dead ends: 991 [2022-04-05 04:36:44,100 INFO L226 Difference]: Without dead ends: 991 [2022-04-05 04:36:44,100 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:36:44,101 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 39 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:44,101 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 547 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-04-05 04:36:44,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2022-04-05 04:36:44,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 954. [2022-04-05 04:36:44,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 949 states have (on average 1.4615384615384615) internal successors, (1387), 949 states have internal predecessors, (1387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:44,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1391 transitions. [2022-04-05 04:36:44,112 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1391 transitions. Word has length 156 [2022-04-05 04:36:44,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:44,112 INFO L478 AbstractCegarLoop]: Abstraction has 954 states and 1391 transitions. [2022-04-05 04:36:44,112 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:44,112 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1391 transitions. [2022-04-05 04:36:44,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-04-05 04:36:44,114 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:44,114 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:44,114 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-05 04:36:44,115 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:44,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:44,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1839212727, now seen corresponding path program 1 times [2022-04-05 04:36:44,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:44,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828826192] [2022-04-05 04:36:44,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:44,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:44,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:44,305 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-04-05 04:36:44,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:44,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828826192] [2022-04-05 04:36:44,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828826192] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:44,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:44,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:36:44,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133405978] [2022-04-05 04:36:44,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:44,306 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:36:44,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:44,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:36:44,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:36:44,307 INFO L87 Difference]: Start difference. First operand 954 states and 1391 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:45,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:47,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:47,093 INFO L93 Difference]: Finished difference Result 1033 states and 1502 transitions. [2022-04-05 04:36:47,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:36:47,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-04-05 04:36:47,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:47,096 INFO L225 Difference]: With dead ends: 1033 [2022-04-05 04:36:47,096 INFO L226 Difference]: Without dead ends: 1033 [2022-04-05 04:36:47,096 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:36:47,096 INFO L913 BasicCegarLoop]: 243 mSDtfsCounter, 28 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:47,097 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 605 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-04-05 04:36:47,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2022-04-05 04:36:47,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1006. [2022-04-05 04:36:47,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4615384615384615) internal successors, (1463), 1001 states have internal predecessors, (1463), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:47,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1467 transitions. [2022-04-05 04:36:47,107 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1467 transitions. Word has length 157 [2022-04-05 04:36:47,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:47,108 INFO L478 AbstractCegarLoop]: Abstraction has 1006 states and 1467 transitions. [2022-04-05 04:36:47,108 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:47,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1467 transitions. [2022-04-05 04:36:47,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-04-05 04:36:47,110 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:47,110 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:47,111 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-05 04:36:47,111 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:47,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:47,111 INFO L85 PathProgramCache]: Analyzing trace with hash 395348402, now seen corresponding path program 1 times [2022-04-05 04:36:47,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:47,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636181485] [2022-04-05 04:36:47,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:47,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:47,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:47,238 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-05 04:36:47,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:47,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636181485] [2022-04-05 04:36:47,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636181485] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:47,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:47,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:36:47,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632783275] [2022-04-05 04:36:47,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:47,239 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:36:47,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:47,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:36:47,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:36:47,240 INFO L87 Difference]: Start difference. First operand 1006 states and 1467 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:50,525 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:50,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:50,902 INFO L93 Difference]: Finished difference Result 1043 states and 1512 transitions. [2022-04-05 04:36:50,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:36:50,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-04-05 04:36:50,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:50,905 INFO L225 Difference]: With dead ends: 1043 [2022-04-05 04:36:50,905 INFO L226 Difference]: Without dead ends: 1043 [2022-04-05 04:36:50,905 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:36:50,906 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 48 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:50,907 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 547 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-04-05 04:36:50,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2022-04-05 04:36:50,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1006. [2022-04-05 04:36:50,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4595404595404595) internal successors, (1461), 1001 states have internal predecessors, (1461), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:50,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1465 transitions. [2022-04-05 04:36:50,937 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1465 transitions. Word has length 163 [2022-04-05 04:36:50,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:50,937 INFO L478 AbstractCegarLoop]: Abstraction has 1006 states and 1465 transitions. [2022-04-05 04:36:50,937 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:50,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1465 transitions. [2022-04-05 04:36:50,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-04-05 04:36:50,940 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:50,940 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:50,940 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-05 04:36:50,940 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:50,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:50,940 INFO L85 PathProgramCache]: Analyzing trace with hash 374542751, now seen corresponding path program 1 times [2022-04-05 04:36:50,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:50,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045129089] [2022-04-05 04:36:50,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:50,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:51,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:51,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:51,066 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-05 04:36:51,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:51,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045129089] [2022-04-05 04:36:51,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045129089] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:51,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:51,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:36:51,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204241660] [2022-04-05 04:36:51,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:51,068 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:36:51,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:51,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:36:51,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:36:51,068 INFO L87 Difference]: Start difference. First operand 1006 states and 1465 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:53,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:54,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:54,547 INFO L93 Difference]: Finished difference Result 1137 states and 1631 transitions. [2022-04-05 04:36:54,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:36:54,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-04-05 04:36:54,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:54,570 INFO L225 Difference]: With dead ends: 1137 [2022-04-05 04:36:54,570 INFO L226 Difference]: Without dead ends: 1137 [2022-04-05 04:36:54,571 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:36:54,571 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 119 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:54,571 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 384 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-04-05 04:36:54,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2022-04-05 04:36:54,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1006. [2022-04-05 04:36:54,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4455544455544456) internal successors, (1447), 1001 states have internal predecessors, (1447), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:54,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1451 transitions. [2022-04-05 04:36:54,583 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1451 transitions. Word has length 164 [2022-04-05 04:36:54,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:54,583 INFO L478 AbstractCegarLoop]: Abstraction has 1006 states and 1451 transitions. [2022-04-05 04:36:54,583 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:54,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1451 transitions. [2022-04-05 04:36:54,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-04-05 04:36:54,585 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:54,586 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:54,586 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-05 04:36:54,586 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:54,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:54,586 INFO L85 PathProgramCache]: Analyzing trace with hash 663485998, now seen corresponding path program 1 times [2022-04-05 04:36:54,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:54,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379254830] [2022-04-05 04:36:54,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:54,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:54,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:54,716 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-05 04:36:54,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:54,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379254830] [2022-04-05 04:36:54,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379254830] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:54,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:54,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:36:54,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122280959] [2022-04-05 04:36:54,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:54,717 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:36:54,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:54,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:36:54,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:36:54,718 INFO L87 Difference]: Start difference. First operand 1006 states and 1451 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:56,102 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:57,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:58,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:58,870 INFO L93 Difference]: Finished difference Result 1039 states and 1490 transitions. [2022-04-05 04:36:58,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:36:58,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-04-05 04:36:58,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:58,874 INFO L225 Difference]: With dead ends: 1039 [2022-04-05 04:36:58,874 INFO L226 Difference]: Without dead ends: 1039 [2022-04-05 04:36:58,874 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:36:58,875 INFO L913 BasicCegarLoop]: 216 mSDtfsCounter, 38 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:58,875 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 553 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-04-05 04:36:58,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2022-04-05 04:36:58,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1006. [2022-04-05 04:36:58,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4435564435564436) internal successors, (1445), 1001 states have internal predecessors, (1445), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:58,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1449 transitions. [2022-04-05 04:36:58,886 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1449 transitions. Word has length 166 [2022-04-05 04:36:58,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:58,887 INFO L478 AbstractCegarLoop]: Abstraction has 1006 states and 1449 transitions. [2022-04-05 04:36:58,887 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:58,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1449 transitions. [2022-04-05 04:36:58,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-04-05 04:36:58,889 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:58,889 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:58,889 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-05 04:36:58,889 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:58,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:58,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1857596404, now seen corresponding path program 1 times [2022-04-05 04:36:58,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:58,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448284088] [2022-04-05 04:36:58,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:58,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:59,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:59,015 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-05 04:36:59,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:59,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448284088] [2022-04-05 04:36:59,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448284088] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:59,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:59,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:36:59,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013023965] [2022-04-05 04:36:59,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:59,016 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:36:59,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:59,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:36:59,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:36:59,017 INFO L87 Difference]: Start difference. First operand 1006 states and 1449 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:01,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:02,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:04,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:05,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:37:05,351 INFO L93 Difference]: Finished difference Result 1031 states and 1478 transitions. [2022-04-05 04:37:05,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:37:05,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-04-05 04:37:05,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:37:05,354 INFO L225 Difference]: With dead ends: 1031 [2022-04-05 04:37:05,354 INFO L226 Difference]: Without dead ends: 1031 [2022-04-05 04:37:05,354 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:37:05,355 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 33 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:37:05,355 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 557 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 458 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-04-05 04:37:05,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2022-04-05 04:37:05,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1006. [2022-04-05 04:37:05,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4415584415584415) internal successors, (1443), 1001 states have internal predecessors, (1443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:05,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1447 transitions. [2022-04-05 04:37:05,365 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1447 transitions. Word has length 167 [2022-04-05 04:37:05,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:37:05,365 INFO L478 AbstractCegarLoop]: Abstraction has 1006 states and 1447 transitions. [2022-04-05 04:37:05,365 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:05,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1447 transitions. [2022-04-05 04:37:05,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-04-05 04:37:05,367 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:37:05,367 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:37:05,367 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-05 04:37:05,368 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:37:05,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:37:05,368 INFO L85 PathProgramCache]: Analyzing trace with hash 2024925367, now seen corresponding path program 1 times [2022-04-05 04:37:05,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:37:05,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711451262] [2022-04-05 04:37:05,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:37:05,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:37:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:05,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:37:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:05,537 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-04-05 04:37:05,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:37:05,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711451262] [2022-04-05 04:37:05,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711451262] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:37:05,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:37:05,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:37:05,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447143766] [2022-04-05 04:37:05,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:37:05,539 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:37:05,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:37:05,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:37:05,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:37:05,540 INFO L87 Difference]: Start difference. First operand 1006 states and 1447 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:07,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:08,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:09,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:10,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:37:10,141 INFO L93 Difference]: Finished difference Result 1479 states and 2128 transitions. [2022-04-05 04:37:10,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:37:10,142 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-04-05 04:37:10,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:37:10,146 INFO L225 Difference]: With dead ends: 1479 [2022-04-05 04:37:10,146 INFO L226 Difference]: Without dead ends: 1479 [2022-04-05 04:37:10,146 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:37:10,147 INFO L913 BasicCegarLoop]: 382 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:37:10,147 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 576 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-04-05 04:37:10,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2022-04-05 04:37:10,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1479. [2022-04-05 04:37:10,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1474 states have (on average 1.440976933514247) internal successors, (2124), 1474 states have internal predecessors, (2124), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:10,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2128 transitions. [2022-04-05 04:37:10,166 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2128 transitions. Word has length 173 [2022-04-05 04:37:10,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:37:10,168 INFO L478 AbstractCegarLoop]: Abstraction has 1479 states and 2128 transitions. [2022-04-05 04:37:10,168 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:10,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2128 transitions. [2022-04-05 04:37:10,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-04-05 04:37:10,171 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:37:10,171 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:37:10,171 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-05 04:37:10,171 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:37:10,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:37:10,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1944610709, now seen corresponding path program 1 times [2022-04-05 04:37:10,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:37:10,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015559554] [2022-04-05 04:37:10,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:37:10,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:37:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:10,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:37:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:10,293 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-05 04:37:10,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:37:10,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015559554] [2022-04-05 04:37:10,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015559554] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:37:10,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:37:10,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:37:10,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215854561] [2022-04-05 04:37:10,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:37:10,294 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:37:10,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:37:10,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:37:10,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:37:10,295 INFO L87 Difference]: Start difference. First operand 1479 states and 2128 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:12,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:37:12,730 INFO L93 Difference]: Finished difference Result 1917 states and 2757 transitions. [2022-04-05 04:37:12,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:37:12,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-04-05 04:37:12,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:37:12,736 INFO L225 Difference]: With dead ends: 1917 [2022-04-05 04:37:12,736 INFO L226 Difference]: Without dead ends: 1917 [2022-04-05 04:37:12,736 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:37:12,737 INFO L913 BasicCegarLoop]: 305 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:37:12,737 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 499 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:37:12,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2022-04-05 04:37:12,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1911. [2022-04-05 04:37:12,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1911 states, 1906 states have (on average 1.441762854144806) internal successors, (2748), 1906 states have internal predecessors, (2748), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:12,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2752 transitions. [2022-04-05 04:37:12,770 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2752 transitions. Word has length 174 [2022-04-05 04:37:12,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:37:12,770 INFO L478 AbstractCegarLoop]: Abstraction has 1911 states and 2752 transitions. [2022-04-05 04:37:12,770 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:12,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2752 transitions. [2022-04-05 04:37:12,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-04-05 04:37:12,773 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:37:12,773 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:37:12,773 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-05 04:37:12,773 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:37:12,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:37:12,774 INFO L85 PathProgramCache]: Analyzing trace with hash 790409397, now seen corresponding path program 1 times [2022-04-05 04:37:12,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:37:12,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407070749] [2022-04-05 04:37:12,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:37:12,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:37:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:12,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:37:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:12,905 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-04-05 04:37:12,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:37:12,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407070749] [2022-04-05 04:37:12,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407070749] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:37:12,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:37:12,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:37:12,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821044665] [2022-04-05 04:37:12,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:37:12,906 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:37:12,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:37:12,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:37:12,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:37:12,907 INFO L87 Difference]: Start difference. First operand 1911 states and 2752 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:15,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:37:15,318 INFO L93 Difference]: Finished difference Result 2108 states and 3035 transitions. [2022-04-05 04:37:15,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:37:15,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 185 [2022-04-05 04:37:15,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:37:15,323 INFO L225 Difference]: With dead ends: 2108 [2022-04-05 04:37:15,324 INFO L226 Difference]: Without dead ends: 2108 [2022-04-05 04:37:15,324 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:37:15,324 INFO L913 BasicCegarLoop]: 248 mSDtfsCounter, 38 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:37:15,325 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 615 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:37:15,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2108 states. [2022-04-05 04:37:15,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2108 to 2023. [2022-04-05 04:37:15,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2023 states, 2018 states have (on average 1.4430128840436076) internal successors, (2912), 2018 states have internal predecessors, (2912), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:15,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2023 states to 2023 states and 2916 transitions. [2022-04-05 04:37:15,348 INFO L78 Accepts]: Start accepts. Automaton has 2023 states and 2916 transitions. Word has length 185 [2022-04-05 04:37:15,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:37:15,348 INFO L478 AbstractCegarLoop]: Abstraction has 2023 states and 2916 transitions. [2022-04-05 04:37:15,349 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:15,349 INFO L276 IsEmpty]: Start isEmpty. Operand 2023 states and 2916 transitions. [2022-04-05 04:37:15,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-04-05 04:37:15,351 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:37:15,351 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:37:15,351 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-05 04:37:15,351 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:37:15,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:37:15,352 INFO L85 PathProgramCache]: Analyzing trace with hash -746379742, now seen corresponding path program 1 times [2022-04-05 04:37:15,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:37:15,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613531425] [2022-04-05 04:37:15,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:37:15,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:37:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:15,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:37:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:15,505 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-04-05 04:37:15,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:37:15,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613531425] [2022-04-05 04:37:15,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613531425] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:37:15,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:37:15,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:37:15,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361759687] [2022-04-05 04:37:15,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:37:15,506 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:37:15,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:37:15,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:37:15,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:37:15,506 INFO L87 Difference]: Start difference. First operand 2023 states and 2916 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:18,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:19,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:21,480 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:21,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:37:21,871 INFO L93 Difference]: Finished difference Result 2234 states and 3173 transitions. [2022-04-05 04:37:21,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:37:21,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 189 [2022-04-05 04:37:21,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:37:21,887 INFO L225 Difference]: With dead ends: 2234 [2022-04-05 04:37:21,888 INFO L226 Difference]: Without dead ends: 2234 [2022-04-05 04:37:21,888 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:37:21,888 INFO L913 BasicCegarLoop]: 145 mSDtfsCounter, 107 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 49 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:37:21,888 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 404 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 447 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-04-05 04:37:21,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2022-04-05 04:37:21,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 2023. [2022-04-05 04:37:21,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2023 states, 2018 states have (on average 1.431615460852329) internal successors, (2889), 2018 states have internal predecessors, (2889), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:21,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2023 states to 2023 states and 2893 transitions. [2022-04-05 04:37:21,920 INFO L78 Accepts]: Start accepts. Automaton has 2023 states and 2893 transitions. Word has length 189 [2022-04-05 04:37:21,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:37:21,920 INFO L478 AbstractCegarLoop]: Abstraction has 2023 states and 2893 transitions. [2022-04-05 04:37:21,920 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:21,920 INFO L276 IsEmpty]: Start isEmpty. Operand 2023 states and 2893 transitions. [2022-04-05 04:37:21,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-04-05 04:37:21,923 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:37:21,923 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:37:21,923 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-04-05 04:37:21,923 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:37:21,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:37:21,924 INFO L85 PathProgramCache]: Analyzing trace with hash -2132148959, now seen corresponding path program 1 times [2022-04-05 04:37:21,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:37:21,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15724259] [2022-04-05 04:37:21,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:37:21,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:37:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:22,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:37:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:22,072 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-04-05 04:37:22,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:37:22,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15724259] [2022-04-05 04:37:22,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15724259] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:37:22,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:37:22,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:37:22,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979445583] [2022-04-05 04:37:22,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:37:22,073 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:37:22,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:37:22,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:37:22,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:37:22,073 INFO L87 Difference]: Start difference. First operand 2023 states and 2893 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:24,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:37:24,975 INFO L93 Difference]: Finished difference Result 2232 states and 3178 transitions. [2022-04-05 04:37:24,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:37:24,975 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-04-05 04:37:24,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:37:24,979 INFO L225 Difference]: With dead ends: 2232 [2022-04-05 04:37:24,979 INFO L226 Difference]: Without dead ends: 2232 [2022-04-05 04:37:24,979 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:37:24,980 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 57 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:37:24,980 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 608 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-04-05 04:37:24,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2022-04-05 04:37:24,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 2128. [2022-04-05 04:37:24,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2123 states have (on average 1.431464908148846) internal successors, (3039), 2123 states have internal predecessors, (3039), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:25,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 3043 transitions. [2022-04-05 04:37:25,002 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 3043 transitions. Word has length 196 [2022-04-05 04:37:25,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:37:25,002 INFO L478 AbstractCegarLoop]: Abstraction has 2128 states and 3043 transitions. [2022-04-05 04:37:25,002 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:25,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 3043 transitions. [2022-04-05 04:37:25,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-04-05 04:37:25,005 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:37:25,005 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:37:25,005 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-05 04:37:25,005 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:37:25,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:37:25,006 INFO L85 PathProgramCache]: Analyzing trace with hash -2042967890, now seen corresponding path program 1 times [2022-04-05 04:37:25,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:37:25,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530437894] [2022-04-05 04:37:25,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:37:25,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:37:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:25,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:37:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:25,136 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-04-05 04:37:25,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:37:25,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530437894] [2022-04-05 04:37:25,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530437894] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:37:25,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:37:25,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:37:25,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065176289] [2022-04-05 04:37:25,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:37:25,137 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:37:25,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:37:25,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:37:25,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:37:25,138 INFO L87 Difference]: Start difference. First operand 2128 states and 3043 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:27,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:29,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:29,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:37:29,797 INFO L93 Difference]: Finished difference Result 2375 states and 3367 transitions. [2022-04-05 04:37:29,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:37:29,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-04-05 04:37:29,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:37:29,801 INFO L225 Difference]: With dead ends: 2375 [2022-04-05 04:37:29,802 INFO L226 Difference]: Without dead ends: 2375 [2022-04-05 04:37:29,802 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:37:29,802 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 108 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:37:29,802 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 392 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-04-05 04:37:29,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2022-04-05 04:37:29,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 2128. [2022-04-05 04:37:29,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2123 states have (on average 1.4258125294394723) internal successors, (3027), 2123 states have internal predecessors, (3027), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:29,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 3031 transitions. [2022-04-05 04:37:29,822 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 3031 transitions. Word has length 197 [2022-04-05 04:37:29,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:37:29,822 INFO L478 AbstractCegarLoop]: Abstraction has 2128 states and 3031 transitions. [2022-04-05 04:37:29,822 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:29,822 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 3031 transitions. [2022-04-05 04:37:29,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-04-05 04:37:29,825 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:37:29,825 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:37:29,825 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-04-05 04:37:29,825 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:37:29,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:37:29,826 INFO L85 PathProgramCache]: Analyzing trace with hash -2042368162, now seen corresponding path program 1 times [2022-04-05 04:37:29,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:37:29,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611664486] [2022-04-05 04:37:29,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:37:29,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:37:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:30,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:37:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:30,369 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-04-05 04:37:30,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:37:30,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611664486] [2022-04-05 04:37:30,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611664486] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:37:30,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:37:30,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-05 04:37:30,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060121714] [2022-04-05 04:37:30,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:37:30,370 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-05 04:37:30,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:37:30,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-05 04:37:30,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-05 04:37:30,371 INFO L87 Difference]: Start difference. First operand 2128 states and 3031 transitions. Second operand has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:31,507 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:32,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:34,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:36,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:38,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:39,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:37:39,016 INFO L93 Difference]: Finished difference Result 2136 states and 3041 transitions. [2022-04-05 04:37:39,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-05 04:37:39,016 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 198 [2022-04-05 04:37:39,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:37:39,019 INFO L225 Difference]: With dead ends: 2136 [2022-04-05 04:37:39,019 INFO L226 Difference]: Without dead ends: 2128 [2022-04-05 04:37:39,019 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:37:39,019 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 7 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:37:39,020 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 871 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 449 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2022-04-05 04:37:39,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2128 states. [2022-04-05 04:37:39,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2128 to 2128. [2022-04-05 04:37:39,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2123 states have (on average 1.425341497880358) internal successors, (3026), 2123 states have internal predecessors, (3026), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:39,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 3030 transitions. [2022-04-05 04:37:39,044 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 3030 transitions. Word has length 198 [2022-04-05 04:37:39,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:37:39,044 INFO L478 AbstractCegarLoop]: Abstraction has 2128 states and 3030 transitions. [2022-04-05 04:37:39,044 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:39,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 3030 transitions. [2022-04-05 04:37:39,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-04-05 04:37:39,046 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:37:39,047 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:37:39,047 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-04-05 04:37:39,047 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:37:39,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:37:39,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1798831299, now seen corresponding path program 1 times [2022-04-05 04:37:39,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:37:39,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765803336] [2022-04-05 04:37:39,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:37:39,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:37:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:40,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:37:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:40,255 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 209 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-04-05 04:37:40,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:37:40,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765803336] [2022-04-05 04:37:40,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765803336] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:37:40,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475136972] [2022-04-05 04:37:40,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:37:40,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:37:40,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:37:40,259 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 04:37:40,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-05 04:37:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:41,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 1293 conjuncts, 173 conjunts are in the unsatisfiable core [2022-04-05 04:37:41,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:37:41,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,690 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 17 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14076 treesize of output 12060 [2022-04-05 04:37:41,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:41,784 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 18 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5440 treesize of output 866